全关节置换术的麻醉期间应常规监测（）
A.CVP
B.ECG
C.SpO2
D.BP
E.尿量
参考答案：B, C, D, E
最主要又最常用的价值性指标是______。
A．净年值
B．净现值
C．净终值
D．净现值率
We firmly believe that war never settles anything. It only ________ violence.[ ]
A. runs into
B. comes from
C. leads to
D. begins with
